The Comparative Analysis :

BMW Z4 Roadster sDrive20i Sport-Automatic (11 - 13) vs. BMW Z4 Roadster sDrive30i Steptronic Sport (19 - ..)

€ 39,000
BMW Z4 Roadster sDrive20i Sport-Automatic (11 - 13) Z4 Roadster sDrive20i
€ 49,000
 BMW Z4 Roadster sDrive30i Steptronic Sport (19 - ..) Z4 Roadster sDrive30i
€ 39,000
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 49,000

ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info

Vehicle Dimensions

The Z4 Roadster sDrive20i is slightly smaller in every dimension. It's 3.3 inches shorter, 2.9 inches narrower and 0.5 inches lower than the Z4 Roadster sDrive30i.
Z4 Roadster sDrive20i
Z4 Roadster sDrive30i
50.8
Blueprint BMW Z4 Roadster sDrive20i Sport-Automatic (11 - 13)
70.5
76.8
51.3
Blueprint BMW Z4 Roadster sDrive30i Steptronic Sport (19 - ..)
73.4
79.7
70.5 in
Width
73.4 in
76.8 in
Width Incl. Mirrors
79.7 in
50.8 in
Height
51.3 in
Blueprint BMW Z4 Roadster sDrive20i Sport-Automatic (11 - 13)
98.3
166.9
Blueprint BMW Z4 Roadster sDrive30i Steptronic Sport (19 - ..)
97.2
170.2
166.9 in
Length
170.2 in
98.3 in
Wheelbase
97.2 in

Vehicle Weight

Z4 Roadster sDrive20i
Z4 Roadster sDrive30i
3296 lb
Curb Weight
3318 lb
3858 lb
Gross Vehicle
Weight
3836 lb
BMW Z4 Roadster sDrive20i Sport-Automatic (11 - 13)
Weight Difference:
22 lb
0.66 %
BMW Z4 Roadster sDrive30i Steptronic Sport (19 - ..)

General

Z4 Roadster sDrive20i
Z4 Roadster sDrive30i
E89
Generation
G29
Roadster
Car Body Style
Roadster
Premium Unleaded
Fuel Type
Premium Unleaded
Rear-wheel drive
Drivetrain
Rear-wheel drive
8-speed automatic transmission
Transmission
8-speed automatic transmission

Engine

Z4 Roadster sDrive20i
Z4 Roadster sDrive30i
Straight-four gasoline engine with tur­bo­charger
Engine Type
Straight-four gasoline engine with tur­bo­charger
BMW N20
Engine Series
BMW B48
N20-B20
Engine Code
B48-B20
4
Valves
4
4
Cylinders
4
2 L / 98 cu in
Displacement
2 L / 98 cu in
181 hp
at 5000 rpm
Power
254 hp
at 5000 rpm
Z4 Roadster sDrive20i
181 hp
254 hp
Z4 Roadster sDrive30i
199 lb‑ft
at 1250 rpm
Max. Torque
295 lb‑ft
at 1550 rpm
Z4 Roadster sDrive20i
199 lb‑ft
295 lb‑ft
Z4 Roadster sDrive30i

Performance

Z4 Roadster sDrive20i
Z4 Roadster sDrive30i
144 mph
Maximum Speed
155 mph
7.2 sec
Acceleration 0 to 62 mph
5.4 sec
62 mph 62
mph

328 ft
0.000 sec

Z4 Roadster sDrive20i

62 mph 62
mph

246 ft
0.000 sec

Z4 Roadster sDrive30i

▶ REPLAY
18.21 lb/hp
Weight-to-Power Ratio
13.06 lb/hp
Z4 Roadster sDrive20i
18.21 lb/hp
13.06 lb/hp
Z4 Roadster sDrive30i

Fuel Economy / Emissions

Z4 Roadster sDrive20i
Z4 Roadster sDrive30i
Fuel Economy
35 mpg
combined
39 mpg
Z4 Roadster sDrive20i
35 mpg
39 mpg
Z4 Roadster sDrive30i
26 mpg
city
32 mpg
No data
highway
No data
Kraftstoffanzeige
14.5 gal
Fuel Tank Capacity
13.7 gal
Kraftstoffanzeige
503 mi
Range
539 mi
Z4 Roadster sDrive20i
503 mi
539 mi
Z4 Roadster sDrive30i
Environmental Impact
128.7 kWh
Total Energy Consumption
per 100 miles ⓘThe total energy consumption per 100 miles is the amount of energy consumed by a vehicle when burning fuel or using electricity per 100 miles (final energy), and the energy required to produce the appropriate amount of fuel or electricity (primary energy).
113.6 kWh
Z4 Roadster sDrive20i
128.7 kWh
113.6 kWh
Z4 Roadster sDrive30i
Euro 5
Emission Standard
Euro 6d-TEMP-EVAP-ISC (WLTP)
256 g/mi (NEFZ)
CO2 Emissions
267 g/mi (WLTP)

Practical Convenience

Z4 Roadster sDrive20i
Z4 Roadster sDrive30i
2
Doors
2
2
No. of Seats
2
562 lb
Maximum Payload
518 lb
8.8 cu ft
Trunk Volume
8 cu ft
No data
Cargo Volume (Seats Down)
No data